Actually, on someone like
, it would be insanely strong. You're W is literally just a little bit more than AA range, so if you have that speed, you can keep spamming bindings like no tomorrow when you trigger the passive. And on top of that, if you get your ult, they can't run from you. Ryze already does enough burst anyway to easily proc the speed, and while stacking on top of his ult speed, you are literally Sonic the Hedgehog. And why would you even take Thunderlords anyway when Ryze doesn't build enough AP for it to efficiently scale?
At max rank of Overload, your passive lasts for 5 seconds (spell spamming mode, not charge-gaining time) and your ult always lasts for 6 seconds no matter what rank the ability itself is. Stormraider's lasts for 3 seconds once you deal enough damage within the 2.5 seconds (post-buff time limit) and has a 10 second CD once you proc the speed (I think). So If you ult and get your passive off at the same time while also activating the move-speed, you should have maybe a 5-6 second window until you can activate Stormraider's again. And since you're passive stacks last for 5 seconds, and with 45% CDR, your is on a 2.5 second CD, you should be able to instantly get your passive off after an Ult+W+E+Q+Q rotation and at the same time trigger Stormraider's. I always knew that keystone would be hella broken on Ryze but now it's really going to be disgusting.